Planing-machine



(ModeL) T., S. T. & E. M. BROWN.

Planing Machine.

No. 243,204. I Patented June 21,1881.

ITNESSES N. PETERS, Fania-Lithographer. Washingwn. n. a

UNITED, STATES PATENT OFFICE.

TRUWORTHY BROWN, STANLEY T. BROWN, AND EDWIN M. BROWN, OF BRUNSWICK, MAINE.

PLANlNG-MACHINE.

SPECIFICATION. forming part of Letters Patent No. 243,204, dated June 21, 1881.

- Application filed May 7, 1881.

To all whom it may concern:

Beit known that we, T. BROWN, S. T. BRoWN, and EDWIN M. BROWN, citizens of the United States, residents of Brunswick, in the county of Cumberland and State of Maine, have invented a new and valuable Improvement in Planing-Machines; and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a longitudinal section. Fig.2 is a horizontal section, and Fig. 3 is a detail view.

This invention has relation to means for planing timber before its removal from the sawcarriage; and it consists in the construction and novel arrangement, in connection with a base provided with slideways and drivinggear, of an upright planer-shaft, its bracketcarriage movable on said ways, its fixed screw, and the nut-gear moving thereon, and pivoted to an arm secured to the base, all as hereinafter shown and described.

In the accompanying drawings, the letter A designates the base, which is designed to be cast of iron, and is securely bolted to the floor or foundation. The height of the base is sufficient to bring its top about even with the bed-.

timbers of the carriage on which the timber is sawed. It is designed to be placed before the circular or board saw in front of the sawyer, and the machine is operated in conjunction with the saw-mill carriage usually, although a special feeding-carriage may be used therewith. The upper part of the base is provided with slideways B, on which the planer-carriage 0 moves. This carriage is provided with an upright standard, D, having bearings afor the upright planer-shaft E, carrying the cutter-head F, and on each side thereof bearings b for the face-rolls G. These rolls are usually provided with springs in rear, allowing them play back and forth, if the work be very twisting. Below, an arm, H, extends downward through the carriage, and is provided with a bearing, a,

(Model.)

for the lower end of the planer-shaft, which carries the driving-pulley d. The base A is made hollow, and into it extend from the planer-carriage downward the arms K, which are provided with squared bearings e for the squared ends 9 of the screw L, which is designed to have a fixed relation to the planercarriage. On the screw is arranged the revolving nut N, which is provided with a gearflange, h, and is pivoted in a bearing-arm, k, which is secured to the Wall of the base. Through a bearing, [,in said wall extends the driving-shaft m, which is provided with a gear, n, designed to engage the toothed flange of the nut N, operating to revolve the same, causing the screw L to move endwise, and with it the planer-carriage, in either direction.

The operation is as follows: After the timber has been sawed, if it is desired to subject it to the action of the planer, it is left on the saw-carriage, which is brought back. Then the driving-shaft m of the planer is turned, moving the cutter-head and its gage-rolls out to the face of the timber, and the latter is moved by a'forward action of the saw-mill carriage past the planer, so that it is fed thereto. After the timber has been planed on one side the carriage on which it rests is run back and the work turned and planed on another side. This action is continued until all sides of the stick have been planed.

By means of this machine very heavy timber can be planed, finishing it smoothly and taking out the twist. After finishing the planing the planer-carriage O is moved back out of the way. Another log can then be put on the saw-mill carriage to be fed to the saw, after which the planer-carriage can be moved up and the surface of the log dressed, as before described. If there is sufficient power, the log can be sawed and planed at the same time. The machine is designed to savea great deal of time and labor in dressing heavy timber.

Having described this invention, what we claim, and desire to secure by Letters Patent, 1s-

1. The combination, with the base and slideways, 0f the reciprocatingplan er-eerriage,

its slidewa-ys and the (lrivinggear n, of the have hereunto subscribed our names in the 10 endwise-moving planer-carriage, the upright presence of two Witnesses. planer-shaft, screw L, nut-gear N, cutter F, TRUWORTHY BROWN and rolls G substantially as specified. 1

2. The colnbination with the base and its its upright shaft,cutte1*, and rolls, substan- Witnesses: tially as specified. GEORGE D. PARKS,

In testimony that we claim the above we SAMUEL L. PREBLE. 

